This report is one of a series of practitioner briefs dedicated to highlighting concrete strategies that education leaders can use to increase equity in education by building supportive learning environments that meet students' social and emotional needs. The initial brief, "School-Community Partnerships. Solutions for Educational Equity through Social and Emotional Well-Being" (ED616007), included some advice from three leaders of successful district-level partnership programs. This companion brief focuses specifically on these leaders' suggestions for how districts can create systems and structures that help schools build and sustain partnerships. It presents steps to: (1) plan and implement partnerships, (2) build trusting relationships, and (3) promote partnerships' sustainability and long-term success. School-community partnerships are a popular evidence-based tool for bringing additional resources and services into schools. They are not easy to implement, but districts can foster these partnerships to advance educational equity by helping schools with planning, relationship building, and sustainability.